.shu{
    width: 1px;
    background: #e1e4e9;
}
.gailan{
    box-shadow: 0 0 20px 5px hsl(262, 100%, 98%);
}
.mt1{
    margin-top: 10px;
}
.mt2{
    margin-top: 20px;
}
.mt3{
    margin-top: 30px;
}
.mt4{
    margin-top: 40px;
}
.f-color{
    color: #a7bac9;  
}